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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 336 (Hybrid Vehicle Control System - Diagnostics) >> Circuit Inspection >> DTC P3106: ECM Communication Circuit Malfunction >> DTC P3106 - Information Code 394 >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2002 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

If INFORMATION CODE 394  is output, check and repair the ECM power source circuit. If there is no problem in the power source circuit, replace the ECM. Prior to the repair, record the DTC of the HV ECU, freeze frame data and history of operation and clear them. Then, start the system one more time ("READY" light ON) and check the DTC again.

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